<template>
  <view class="my-settle-container">
    <label class="radio" @click="changeAllState">
      <radio color="#c00000" :checked="isFullCheck" /><text>全选</text>
    </label>
    <!-- 合计区域 -->
    <view class="amount-box">
      合计:<text class="amount">￥{{checkedGoodsAmount}}</text>
    </view>
    <!-- 结算按钮 -->
    <view class="btn-settle" @click="settlement">结算{{checkedCount}}</view>
  </view>
</template>

<script>
  import {
    mapGetters,
    mapMutations,
    mapState
  } from 'vuex'
  export default {
    name: "my-settle",
    data() {
      return {
        seconds: 3,
        timer: null
      };
    },
    computed: {
      ...mapGetters('m_cart', ['checkedCount', 'total', 'checkedGoodsAmount']),
      ...mapGetters('m_user', ['addstr']),
      ...mapState('m_user', ['token']),
      isFullCheck() {
        return this.total === this.checkedCount
      }
    },
    methods: {
      ...mapMutations('m_cart', ['updateAllGoodsState']),
      ...mapMutations('m_user', ['updateRedirectInfo']),
      changeAllState() {
        // 修改购物车中所有商品的选中状态
        // !this.isFullCheck 表示：当前全选按钮的状态取反之后，就是最新的勾选状态
        this.updateAllGoodsState(!this.isFullCheck)
      },
      // 结随按钮
      settlement() {
        // 先判断是否勾选要结算商品
        if (!this.checkedCount) return uni.$showMsg('请选择要结算的商品')

        // 判断用户是否选择了收货地址
        if (!this.addstr) return uni.$showMsg('请选择收货地址')
        // 最后判断用户是否登陆了
        // if(!this.token )return uni.$showMsg('请先登录')
        if (!this.token) return this.delayNavigate()


        // 微信支付
        this.payOrder()
      },
      showTips(n) {
        uni.showToast({
          // 不展示任何图标
          icon: 'none',
          title: '请登录后结算' + n + '秒后自动跳转到登录页',
          mask: true,
          duration: 1500


        })
      },
      delayNavigate() {
        this.seconds = 3
        this.showTips(this.seconds)


        // 创建定时器，每隔一秒执行一次
        this.timer = setInterval(() => {
          this.seconds--

          if (this.seconds <= 0) {
            clearInterval(this.timer)

            // 跳转到my页面
            uni.switchTab({
              url: '/pages/my/my',
              success: () => {
                this.updateRedirectInfo({
                  openType: 'switchTab',
                  // 从哪个页面跳转过去
                  from: '/pages/cart/cart'
                })
              }
            })
            return
          }
          this.showTips(this.seconds)
        }, 1000)
      },
      async payOrder() {
        // 创建订单
       const orderInfo = {
           // 开发期间，注释掉真实的订单价格，
           // order_price: this.checkedGoodsAmount,
           // 写死订单总价为 1 分钱
           order_price: 0.01,
           consignee_addr: this.addstr,
           goods: this.cart.filter(x => x.goods_state).map(x => ({ goods_id: x.goods_id, goods_number: x.goods_count, goods_price: x.goods_price }))
         }

        // 发起请求创建订单
        const {
          data: res
        } = await uni.$http.post('/api/public/v1/my/orders/create', orderInfo)
        if (res.meta.status !== 200) return uni.$showMsg('创建订单失败！')
        // 响应订单编号
        const orderNumber = res.message.order_number
         // 2. 订单预支付
         // 2.1 发起请求获取订单的支付信息
         const { data: res2 } = await uni.$http.post('/api/public/v1/my/orders/req_unifiedorder', { order_number: orderNumber })
         // 2.2 预付订单生成失败
         if (res2.meta.status !== 200) return uni.$showError('预付订单生成失败！')
         // 2.3 得到订单支付相关的必要参数
         const payInfo = res2.message.pay

         // 3. 发起微信支付
           // 3.1 调用 uni.requestPayment() 发起微信支付
           const [err, succ] = await uni.requestPayment(payInfo)
           // 3.2 未完成支付
           if (err) return uni.$showMsg('订单未支付！')
           // 3.3 完成了支付，进一步查询支付的结果
           const { data: res3 } = await uni.$http.post('/api/public/v1/my/orders/chkOrder', { order_number: orderNumber })
           // 3.4 检测到订单未支付
           if (res3.meta.status !== 200) return uni.$showMsg('订单未支付！')
           // 3.5 检测到订单支付完成
           uni.showToast({
             title: '支付完成！',
             icon: 'success'
           })


      }
    }
  }
</script>

<style lang="scss">
  .my-settle-container {
    position: fixed;
    bottom: 0;
    left: 0;

    width: 100%;
    height: 50px;
    background-color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 5px;
    font-size: 14px;
  }

  .radio {
    display: flex;
    align-items: center;
  }

  .amount {
    color: #c00000;
  }

  .btn-settle {
    height: 50px;
    min-width: 100px;
    background-color: #c00000;
    color: white;
    line-height: 50px;
    text-align: center;
    padding: 0 10px;
  }
</style>
